Search results for "68"
showing 10 items of 1026 documents
Integration of a Dirac comb and the Bernoulli polynomials
2016
Abstract For any positive integer n , we consider the ordinary differential equations of the form y ( n ) = 1 − Ш + F where Ш denotes the Dirac comb distribution and F is a piecewise- C ∞ periodic function with null average integral. We prove the existence and uniqueness of periodic solutions of maximal regularity. Above all, these solutions are given by means of finite explicit formulae involving a minimal number of Bernoulli polynomials. We generalize this approach to a larger class of differential equations for which the computation of periodic solutions is also sharp, finite and effective.
PSA and PSA Kinetics Thresholds for the Presence of 68Ga-PSMA-11 PET/CT-Detectable Lesions in Patients with Biochemical Recurrent Prostate Cancer
2020
68Ga-PSMA-11 positron-emission tomography/computed tomography (PET/CT) is commonly used for restaging recurrent prostate cancer (PC) in European clinical practice. The goal of this study is to determine the optimum time for performing these PET/CT scans in a large cohort of patients by identifying the prostate-specific-antigen (PSA) and PSA kinetics thresholds for detecting and localizing recurrent PC. This retrospective analysis includes 581 patients with biochemical recurrence (BC) by definition. The performance of 68Ga-PSMA-11 PET/CT in relation to the PSA value at the scan time as well as PSA kinetics was assessed by the receiver-operating-characteristic-curve (ROC) generated by plottin…
Diagnostic Performance of 68Ga-PSMA-11 Positron-emission-tomography/Computed-tomography in a Large Cohort of Patients with Biochemical Recurrence of …
2020
Gallium-68 (Ga) prostate-specific-membrane-antigen positron-emission-tomography/computed-tomography is a highly promising method for imaging primary and recurrent prostate cancer. These dual-modality imaging technologies enable whole-body functional and anatomical evaluation in a single session. This study investigated the performance of Ga-prostate-specific-membrane-antigen-11 positron-emission-tomography/computed-tomography for detecting prostate carcinoma in patients with rising prostate-specific-antigen after primary therapy. Six hundred sixty (660) patients with biochemical recurrence referred for positron-emission-tomography/computed-tomography with Ga-prostate-specific-membrane-antig…
Effect of Graphene Nanoplatelets on the Physical and Antimicrobial Properties of Biopolymer-Based Nanocomposites
2016
In this work, biopolymer-based nanocomposites with antimicrobial properties were prepared via melt-compounding. In particular, graphene nanoplatelets (GnPs) as fillers and an antibiotic, i.e., ciprofloxacin (CFX), as biocide were incorporated in a commercial biodegradable polymer blend of poly(lactic acid) (PLA) and a copolyester (BioFlex®). The prepared materials were characterized by scanning electron microscopy (SEM), and rheological and mechanical measurements. Moreover, the effect of GnPs on the antimicrobial properties and release kinetics of CFX was evaluated. The results indicated that the incorporation of GnPs increased the stiffness of the biopolymeric matrix and allowed for the t…
The Effects of Nanoclay on the Mechanical Properties, Carvacrol Release and Degradation of a PLA/PBAT Blend
2020
The formulation of polymeric films endowed with the abilities of controlled release of antimicrobials and biodegradability is the latest trend of food packaging. Biodegradable polymer (Bio-Flex®
La verdad sobre la cuestión Blasco-Soriano
1903
Hydrogen Peroxide Diffusion through Enamel and Dentin
2018
The purpose of this study was to evaluate the in vitro diffusion of commercial bleaching products (hydrogen peroxide (HP) or carbamide peroxide (CP) based) with different application protocols. Human enamel-dentin discs were obtained and divided into 20 groups. Four commercial products based on HP (Pola Office+(PO), Perfect Bleach (PB), Norblanc Office-automix (NO), and Boost (BT)), and one based on CP (PolaDay CP (PD)), were evaluated with different application protocols (3 applications ×
Borrelia burgdorferi ārējās virsmas proteīnu BB0689 un BBA73 funkcionālie pētījumi
2015
Maģistra darbs veidots ar mērķi noskaidrot B. burgdorferi ārējās virsmas proteīnu BB0689 un BBA73 potenciālo lomu patogēna un saimniekorganisma mijiedarbībā, kas varētu paplašināt mūsu zināšanas par Laimboreliozes patoģenēzi. Borēlijas proteīnu un zīdītāju vai artropodu proteīnu iespējamā mijiedarbība ir noteikta, izmantojot Ni-NTA afinitātes hromatogrāfiju, proteīnu kompleksu imūnprecipitāciju (Co-Ip) un attālināto Western blotu. Konstatēto mijiedarbības partneru identifikācijai ir izmantota MALDI-TOF masas spektrometrija. Pētījuma rezultātā ir konstatēta BB0689 iespējamā saistība ar vairākiem zīdītāju proteīniem, savukārt BBA73 gadījumā ir novērota tā mijiedarbība ar Ixodes ērču proteīnie…
Contextualización iconográfica e intervención en las pinturas murales de la Capilla de la Comunión de la iglesia parroquial de san Nicolás de Bari y …
2018
Estudios del botánico Antonio Campillo Marco en la Universidad de Zaragoza
2018
Se ofrecen noticias sobre el nacimiento y el paso por la Universidad de Zaragoza del farmacéutico y botánico aragonés Antonio Campillo Marco, autor de numerosas obras de botánica, química, hidrología, aritmética o literatura, entre las que destaca su monumental manuscrito Orbe vegetale, en el que describe más de cinco mil especies de plantas. / Some news about the birth and the stay in the University of Zaragoza of the aragonese pharmacist and botanist Antonio Campillo Marco. He was the author of many works about Botany, Chemistry, Hidrology, Arithmetic or Literature, including his monumental handwritten work Orbe vegetale in which there are described over five thousand plant species.